feat: manage motd for alpine

templates/motd/alpine-motd.sh.j2

@@ -0,0 +1,23 @@
+#!/bin/sh
+
+# distribution information
+if [ -f /etc/os-release ]; then
+  . /etc/os-release
+  linux_distribution="\033[36m$PRETTY_NAME\033[0m"
+else
+  linux_distribution="\033[36mUnknown Linux Distribution\033[0m"
+fi
+
+# disk usage
+disk_usage=$(df -h / | awk 'NR==2 {print $3 " / " $2 " (" $5 ")"}')
+
+# memory usage
+memory_usage=$(free -m | awk 'NR==2 {print $3 " MB / " $2 " MB (" int($3/$2*100) "%)"}')
+
+# display motd
+echo "Welcome to $(hostname)!"
+echo ""
+echo -e "$linux_distribution"
+echo "Disk Usage: $disk_usage"
+echo "Memory Usage: $memory_usage"
+echo ""